by Prof. S.H. Rewoldt $7.00
by Drs. H. Basri Iba Asghary $11.00
by Depdikbud $6.00
by James Champy $13.00
by Ny. Susmayati, B.A dan Ny. Hj. Asnidar $7.00
by Hoogendoom, J. $6.00